barbiturate n.

in chemistry, word-forming element used to form the names of salts from acids in -ic; from Latin -atus, -atum, suffix used in forming adjectives and thence nouns; identical with -ate (1).

The substance formed, for example, by the action of acetic acid (vinegar) on lead was described in the 18th century as plumbum acetatum, i.e. acetated lead. Acetatum was then taken as a noun meaning "the acetated (product)," i.e. acetate. [W.E. Flood, "The Origins of Chemical Names," London, 1963]

fem. proper name, from Latin, fem. of barbarus "strange, foreign, barbarous," from Greek barbaros (see barbarian (n.)). For women, unlike men, the concept of "alien" presumably could be felt as "exotic" and thus make an appealing name. Popularized as a Christian name by the legend of Saint Barbara, early 4c. martyr, whose cult flourished from 7c. The common Middle English form was Barbary. A top 10 name in popularity for girls born in the U.S. between 1927 and 1958.